Here's my idea. I'm looking at Backblaze Personal vs B2, and Duplicati + OneDrive (for limited cloud backups up to the 6TB I get with Microsoft O365). I'm also looking at SyncThing, where a remote endpoint at a friends house (who is also obsessed like me with building out technology with large amounts of storage for no reason at all). If we're following a 3-2-1 backup strategy, and we're open to having double the online storage that we need at home, we could split that storage into to local arrays. One is a NAS available to equipment and users on the premises, another is effectively a Windows or Mac box in the same environment with direct-attached storage. This machine is configured as backup target on the local network (with whatever software makes sense for that given the clients on the local network), and has the Backblaze personal client running on it. It syncs the backups that are deposited onto it up to the cloud.
